#include <iostream>

class Solution
{
public:
    int main()
    {
        char lowerCase;
        std::cin >> lowerCase;
        std::cout << static_cast<char>(lowerCase - 'a' + 'A');
        return 0;
    }
};

#ifndef __LOCAL_TEST__
int main()
{
    return Solution().main();
}
#endif